Stabilized hydrogen peroxide composition



Patented Dec. 3, 1935 UNITED STATES PATENT OFFICE 2,022,860 STABILIZED HYDROGEN renoxmr.

GOMPO SITION Albert Kunz, Naples, Italy No Drawing. Application March 13, 1935, Serial No. 10,913

2 Claims. (01. 23--251) Hydrogen peroxide solutions, as is well known, ardized treatment in the bleaching operation is have a tendency to deteriorate in the course of diflicult, if not impossible. i time. Many substances have been added to such I have discovered that antipy is a excelsolutions in the hope that they will retard such lent stabilizer for hydrogen peroxide solutions, 5 deterioration or make the solution stable, some for general use and particularly for the special 5 of which have been successful to a degree in reuse of bleaching liv ng human hair and for other tarding the deterioration. beauty parlor purposes.

For special purposes, such, for example, as for I have discovered that one-half /2) am o the bleaching, of living human hair, the hydrogen antipyri p r liter o y r en per xide solu ion peroxide solution must be strong enough to bleach s Ve y effective, but h D P y be 10 ,1 t t, t be strong enough to varied without departing from the principle of burn it. In View f the degree of deterioration, the invention since the stabilizing action remains which is ordinarily a function of the length of even wlth dlfierent amounts q l b as the time that the solution stands, the solution in the amount becomes Small! the stabmzmg effect same bottle will have different degrees of effecdecreases too rapldly Wmle too much antlpy 15 tiveness, either beneficial or harmful, depending gj g i Sunply amounts t0 Waste of that o the time that it is used. As a result, if a solution of hydrogen peroxide is to be used im-' described my mventmn what I 61mm mediately for such bleaching efiect, it should be An aqueous olution of hydrogen peroxide 2 20 made upweaker than if it is to be used after a t bilized ith antipyrine.

l n n r a of m q nt y, th is a 2. A stable aqueous solution of hydrogen pergreat deal of confusion in the hair treatment inx d cgntaining b t, one-half gram f t dustry, due to the constantly changing strength pyrine per litre.

of the solution of hydrogen peroxide, and stand- ALBERT KUNZ. 25 

